306746
5
Installation
General Information
NOTE:
Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawing.
NOTE:
Always use Genuine Graco Parts and Acces-
sories, available from your Graco distributor. If you
supply your own accessories, be sure they are ade-
quately sized and pressure rated for your system.
Fig. 2 is only a guide for selecting and installing sys-
tem components and accessories. Contact your Graco
distributor for assistance in designing a system to suit
your particular needs.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section
FIRE AND EXPLOSION
HAZARD
on page 3.
1.
Pump:
To ground the pump, loosen the grounding
lug locknut (A) and washer (B). Insert one end of a
12 gal (1.5 mm
2
) minimum ground wire (D) into the
slot in lug (C) and tighten locknut securely. See
Fig. 1. Connect the other end of the wire to a true
earth ground. Check your local code.
TI1809A
Fig. 1
A
B
D
C
2.
Air and fluid hoses:
use only grounded hoses with
a maximum of 500 ft (150 m) combined hose
length to ensure grounding continuity.
3.
Air compressor:
follow manufacturer’s recommen-
dations.
4.
Spray gun or dispensing valve:
obtain grounding
through connection to a properly grounded fluid
hose and pump.
5.
Object being sprayed:
follow your local code.
6.
Solvent pails used when flushing:
follow your local
code. Use only metal pails, which are conductive,
placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continu-
ity.
7.
To maintain grounding continuity when flushing or
relieving pressure
, hold a metal part of the gun/
valve firmly to the side of a grounded
metal
pail,
then trigger the gun/valve.
